SVX Safe Area Energized to Open (CE240)

The SVX Energize to Close Valve is designed to mechanically latch in the open position for the diesel engine to run. In the event of an engine overspeed condition, the solenoid is energized to release the latching mechanism and allow positive spring action to close the valve. The valve is designed to be opened manually. The valve includes options for a microswitch position indication and manual cable shutdown.

SVX Energize To Close Models Available:

Valve Size:

(3” | 76mm)

(5” | 127mm)

(8” | 203mm)

Basic Models

12VDC

SVX-381

SVX-581

SVX-881

24VDC

SVX-391

SVX-591

SSX-891

With Microswitch

12VDC

SVX-380

SVX-580

SVX-880

24VDC

SVX-390

SVX-590

SVX-890

With Manual Shutdown

12VDC

SVX-385

SVX-585

SVX-885

24VDC

SVX-395

SVX-595

SVX-895

With both Microswitch and Manual Shutdown

12VDC

SVX-384

SVX-584

SVX-884

24VDC

SVX-394

SVX-594

SVX-894

The SVX Energize to Run Valve is designed with “fail safe” actuation. The valves are equipped with 2-coil solenoids. The “Pull” coil is used to open the valve when power is initially applied. The second coil is the “Hold” coil which is used to hold the valve open in run position as long as power is supplied. When power is cut off for any reason such as the detection of an engine overspeed condition the valve will close. The valves also include the option for a microswitch position indication.

SVX Energize To Run Models Available:

Valve Size:

(3” | 76mm)

(5” | 127mm)

(8” | 203mm)

3-Wire Externally Switched Solenoid Models

12VDC

SVX-300

SVX-500

SVX-800

24VDC

SVX-301

SVX-501

SVX-801

3-Wire With Microswitch

12VDC

SVX-308

SVX-508

SVX-808

24VDC

SVX-307

SVX-507

SVX-807

2-Wire Internally Switched Solenoid Models

12VDC

SVX-302

SVX-502

SVX-802

24VDC

SVX-303

SVX-503

SVX-803

2-Wire With Microswitch

12VDC

SVX-306

SVX-506

SVX-806

24VDC

SVX-305

SVX-505

SVX-805

The SVX Energize to Latch Open with Manual Open/Stop Lever Valves is designed with “fail safe” actuation. The valve is opened using the manual start/stop lever. After the valve has been opened power is applied to the solenoid. The valve is held open as long as power is supplied. When power is cut off for any reason such as the detection of an engine overspeed condition the valve will close.

SVX Energize To Latch Open Models Available:

Valve Size:

(3” | 76mm)

(5” | 127mm)

12VDC

SVX-350

SVX-550

24VDC

SVX-351

SVX-551

Drilling rigs (onshore & offshore)

Drilling support equipment

Well servicing equipment

Refinery support equipment

Mining equipment

Generator sets

Work boats

Barges

Actuation methods:

Energize to Run

Electric solenoids:

12 VDC

24 VDC

Pull: 46A

Pull: 25A

Hold: 1.1A

Hold: 0.5A

Valve body size:

3" (76mm)

5" (127mm)

8" (203mm)

Hose adapter size:

1½"-4" (38-102mm)

3½"-6" (89-152mm)

7"-8" (178-203mm)

SVX Energize To Close Valve

The SVX Energize to Close Valve is designed to mechanically latch in the open position for the diesel engine to run. In the event of an engine overspeed condition, the solenoid is energized to release the latching mechanism and allow positive spring action to close the valve. The valve is designed to be opened manually. The valve includes options for a microswitch position indication and manual cable shutdown.

SVX Energize To Run Valve

The SVX Energize to Run Valve is designed with “fail safe” actuation. The valves are equipped with 2-coil solenoids. The “Pull” coil is used to open the valve when power is initially applied. The second coil is the “Hold” coil which is used to hold the valve open in run position as long as power is supplied. When power is cut off for any reason such as the detection of an engine overspeed condition the valve will close.

The solenoids valve is available with either a 3-wire externally switched solenoid or a 2-wire internally switched solenoid. The 3-wire externally switched solenoid requires an external timer to cut off power to the “Pull” coil and permitting the “Hold” coil to stay energized. The 2-wire internally switched solenoid incorporates the control circuit required to manage the “Pull” and “Hold” coils in the solenoid.

The valves also include the option for a microswitch position indication.

SVX Energize To Latch Open Valve with Manual Open/Close Lever

The SVX Energize to Latch Open with Manual Open/Stop Lever Valves is designed with “fail safe” actuation. The valve is opened using the manual start/stop lever. After the valve has been opened power is applied to the solenoid. The valve is held open as long as power is supplied. When power is cut off for any reason such as the detection of an engine overspeed condition or other unsafe engine operating conditions, the valve will close.

Valve Installation Accessories
There are accessories and kits available to help simplify installation of the SVX Valves. Hose adaptors are available in a wide range of sizes to match the requirement for engine air intake lines. Installation kits are also available for a wide variety of hose sizes.

Installation Kits

● HAX Butterfly Valve ● Hose Adaptors

Speed Switches

RGR RevGuard Speed Switch

CSX-300 Control Unit

Speed Sensors

● 4031 Magnetic Pickup

Activation Kits
Actuation kits contain hardware required to properly install and integrate the specified shutdown system into the diesel engine application. The kits, specific for each type of system and application, can include items such as:

Overview Brochure

Application Paper

Application Paper

Manual

Technical Service Bulletins

POP-UP-CONTENT

Press Release

Chalwyn Product Overview

Overview

Overview

OverviewEnergize to Close ValveEnergize to Run ValveEnergize to Latch Open w/ Manual LeverApplicationsSpecificationsOperationAccessoriesDocumentation

Overview

The Chalwyn SVX Electric Actuated Butterfly Air Intake Shutoff Valve is available with three different methods of electric actuation described below. The descriptions include the available models for each version.

Energize to Close Valve

The SVX Energize to Close Valve is designed to mechanically latch in the open position for the diesel engine to run. In the event of an engine overspeed condition, the solenoid is energized to release the latching mechanism and allow positive spring action to close the valve. The valve is designed to be opened manually. The valve includes options for a microswitch position indication and manual cable shutdown.

SVX Energize To Close Models Available:

Valve Size:

(3” | 76mm)

(5” | 127mm)

(8” | 203mm)

Basic Models

12VDC

SVX-381

SVX-581

SVX-881

24VDC

SVX-391

SVX-591

SSX-891

With Microswitch

12VDC

SVX-380

SVX-580

SVX-880

24VDC

SVX-390

SVX-590

SVX-890

With Manual Shutdown

12VDC

SVX-385

SVX-585

SVX-885

24VDC

SVX-395

SVX-595

SVX-895

With both Microswitch and Manual Shutdown

12VDC

SVX-384

SVX-584

SVX-884

24VDC

SVX-394

SVX-594

SVX-894

Energize to Run Valve

The SVX Energize to Run Valve is designed with “fail safe” actuation. The valves are equipped with 2-coil solenoids. The “Pull” coil is used to open the valve when power is initially applied. The second coil is the “Hold” coil which is used to hold the valve open in run position as long as power is supplied. When power is cut off for any reason such as the detection of an engine overspeed condition the valve will close. The valves also include the option for a microswitch position indication.

SVX Energize To Run Models Available:

Valve Size:

(3” | 76mm)

(5” | 127mm)

(8” | 203mm)

3-Wire Externally Switched Solenoid Models

12VDC

SVX-300

SVX-500

SVX-800

24VDC

SVX-301

SVX-501

SVX-801

3-Wire With Microswitch

12VDC

SVX-308

SVX-508

SVX-808

24VDC

SVX-307

SVX-507

SVX-807

2-Wire Internally Switched Solenoid Models

12VDC

SVX-302

SVX-502

SVX-802

24VDC

SVX-303

SVX-503

SVX-803

2-Wire With Microswitch

12VDC

SVX-306

SVX-506

SVX-806

24VDC

SVX-305

SVX-505

SVX-805

Energize to Latch Open w/ Manual Lever

The SVX Energize to Latch Open with Manual Open/Stop Lever Valves is designed with “fail safe” actuation. The valve is opened using the manual start/stop lever. After the valve has been opened power is applied to the solenoid. The valve is held open as long as power is supplied. When power is cut off for any reason such as the detection of an engine overspeed condition the valve will close.

SVX Energize To Latch Open Models Available:

Valve Size:

(3” | 76mm)

(5” | 127mm)

12VDC

SVX-350

SVX-550

24VDC

SVX-351

SVX-551

Applications

Drilling rigs (onshore & offshore)

Drilling support equipment

Well servicing equipment

Refinery support equipment

Mining equipment

Generator sets

Work boats

Barges

Specifications

Actuation methods:

Energize to Run

Electric solenoids:

12 VDC

24 VDC

Pull: 46A

Pull: 25A

Hold: 1.1A

Hold: 0.5A

Valve body size:

3" (76mm)

5" (127mm)

8" (203mm)

Hose adapter size:

1½"-4" (38-102mm)

3½"-6" (89-152mm)

7"-8" (178-203mm)

Operation

SVX Energize To Close Valve

The SVX Energize to Close Valve is designed to mechanically latch in the open position for the diesel engine to run. In the event of an engine overspeed condition, the solenoid is energized to release the latching mechanism and allow positive spring action to close the valve. The valve is designed to be opened manually. The valve includes options for a microswitch position indication and manual cable shutdown.

SVX Energize To Run Valve

The SVX Energize to Run Valve is designed with “fail safe” actuation. The valves are equipped with 2-coil solenoids. The “Pull” coil is used to open the valve when power is initially applied. The second coil is the “Hold” coil which is used to hold the valve open in run position as long as power is supplied. When power is cut off for any reason such as the detection of an engine overspeed condition the valve will close.

The solenoids valve is available with either a 3-wire externally switched solenoid or a 2-wire internally switched solenoid. The 3-wire externally switched solenoid requires an external timer to cut off power to the “Pull” coil and permitting the “Hold” coil to stay energized. The 2-wire internally switched solenoid incorporates the control circuit required to manage the “Pull” and “Hold” coils in the solenoid.

The valves also include the option for a microswitch position indication.

SVX Energize To Latch Open Valve with Manual Open/Close Lever

The SVX Energize to Latch Open with Manual Open/Stop Lever Valves is designed with “fail safe” actuation. The valve is opened using the manual start/stop lever. After the valve has been opened power is applied to the solenoid. The valve is held open as long as power is supplied. When power is cut off for any reason such as the detection of an engine overspeed condition or other unsafe engine operating conditions, the valve will close.

Accessories

Valve Installation Accessories
There are accessories and kits available to help simplify installation of the SVX Valves. Hose adaptors are available in a wide range of sizes to match the requirement for engine air intake lines. Installation kits are also available for a wide variety of hose sizes.

Installation Kits

● HAX Butterfly Valve ● Hose Adaptors

Speed Switches

RGR RevGuard Speed Switch

CSX-300 Control Unit

Speed Sensors

● 4031 Magnetic Pickup

Activation Kits
Actuation kits contain hardware required to properly install and integrate the specified shutdown system into the diesel engine application. The kits, specific for each type of system and application, can include items such as: